Automatic stop attachment for paper-embossing machines.



N0 533,7Ul.

J. A. PRINCE.

AUTOMATIC STOP ATTACHMENT FOB PAPER EMBOSSING MACHINES.

Patented Sept. 26, I899.

Application filed Nov. 25, 1898.)

2 Sheets-Sheet I.

(No Model.)

3: fiiniaaesw Patented Sept. 26, I899.

J. A. PRINCE. AUTOMATIC STOP ATTACHMENT FOR PAPER EMBOSSING MACHINES.

(Application filed Nov. 25, 1898.

2 Sheats-Sheet 2,

(No Model.)

N. ac.

NTTED STATES JO HN ALEX. PRINCE,

PATENT OFFICE.

OF NETV YORK, N. Y.

AUTOMATIC STOP ATTACHMENT FOR PAPER-EMBOSSING MACHINES.

SPECIFICATION forming part of Letters Patent No. 633,701, datedSeptember 26, 1899.

Application filed November 25, 1898 Serial N0. 697,330. (No model.)

To aZZ whom, it may concern:

Be it known that 1, JOHN ALEX. PRINCE, a citizen of the United States,and a resident of New York, in the county and State of New York, haveinvented a new and useful Improvement in Automatic Stop Attachments forPaper-Embossing Machines, of which the following is a specification.

My invention relates to an improvement in automatic stop attachments forpaper-enibossing machines in which the machine is automatically stoppedshould the paper cling too long to the impression-roller.

My improved stop attachment is operated by means of a normallystationary roller mounted in proximity to the face of theimpression-roll, the distance between the roller and impression-rollbeing such that if the embossed paper should pass around theimpression-roll far enough to pass between the two rollers thestop-attachment roller would be operated to stop the machine by thefolding of the paper between the impression-roll and stop-attachmentroller.

A practical embodiment of my invention is represented in theaccompanying drawings, in which Figure 1 represents an end View of anembossing-machine with my improved stop attachment applied thereto. Fig.2 is a partial front View of the same. Fig. 3 is a vertical sectionthrough the machine from front to rearin the plane of the line 3 3 ofFig. 2. Fig. 4: is a view of the latch-bar and its adjacent parts, thelatch-barbeing shown in full lines engaged with its catch and in dottedlines in the position which it assumes when raised by the tripping-arm.Fig. 5 is a view of the same parts, showing the position which theyassume after the latch-bar has been released. Fig. 6 is a verticalcross-section in the plane of the line 6 6 of Fig. 5, and Fig. 7 is adetail View of the tripping-arm-operating cam.

My improved stop attachment, which is under the control of the embossedpaper as it leaves the impression-roll, is herein shown and described inconnection with my stop attachment for use in connection with the paperwhich is being fed into the machine,which latter stop attachment andmechanism form the subjectmatter of Letters Patent No. 615,900, grantedto me on December 13, 1898,

for an improvement in automatic stop attachments for paper-embossingmachines.

A A designate the side frames of the embossing-machine, between whichare mounted an embossing-roll l3 and an impressionroll 0. These rollsare geared together by spur-gears b c exterior to the side frame A. Theembossing-roll B is geared to and rotated by a drive-shaft D, suitablymounted in the machine,.which drive-shaft is provided with fast andloose pulleys (Z d. The drive-shaft D is rotated by a belt E, running toa source of power. (Not shown.)

A belt-shifter F is mounted to reciprocate upon suitable guide-rods ff,extended outwardly from the side frame A, which beltshifter is providedwith a suitable loop f for engaging the driving-belt E.

A guideroller Gis mounted across the front of the machine in suitablevertically-adjustable bearings g, and a smaller guide-roller H ismounted between the side frames A A at a point to the rear and slightlybelow the guide-roller G.

A roll of paper I is wound upon a beam 2', which is mounted insupporting-brackets i on the side frames A A in front of the guiderollerG. The paper is led over the guideroller G, under the guide-roller H,and between the embossing and impression rolls B and 0, from thencepartially around the roll C, and from thence over a roller h, at whichpoint it leaves the machine.

The roller J is mounted in bearings j on the side frames A A, thesaidroller being located directly above the roller G, the distance betweenthe two rollers being just sufficient to permit paper of the requiredthickness to pass therethrough without engaging the roller J. Acam K issecured to the end of the shaft of the roller J exterior to the sideframe A.

A tripping-arm L is hinged at Z to the side frame A, and at its free endthe said arm is provided with a roller Z, arranged to engage theperiphery of the cam K. This cam is provided with a slightly-depressedportion 70, within which the roller Z seats, so that the roller J willnot be caused to rotate unintentionally-as, for instance, by the jar ofthe machine.

A rock-shaft M is mounted in bearings m upon the side frame A and isprovided with upwardly-extended arms m m the arm m having a handle m atits free end. The arm m is connected with the belt-shifter F by a bar mso that the rocking movement of the shaft M will operate the beltshifter and cause it to shift the belt from one to the other of the fastand loose pulleys (Z (Z on the driveshaft. A retracting-spring N extendsbetween the end plate f of the belt-shifter guide and the arm n forshifting the belt from the fast pulley to the loose pulley.

The belt-shifter F is held against the tension of the spring N, with thedriving-belt in engagement with the fast pulley (Z, by means of alatch-bar O, hinged at 0 to the arm m of the rock-shaft M, whichlatch-bar is provided with a suitable notch 0, which is engaged by acatch 1?, secured to the front of the side frame A. The latch-bar O isprovided with a lug 0 which rests in close proximity to thetripping-arm'L when the latch-bar is held in its locked position.

A roller Q is mounted in adjustable bearings g on the side frames A A.This roller is located at a point to the front of the impression-roll Oand may be adjusted toward and away from the impression-roll until thespace between it and the impression-roll is just sufiicient to permitthe'impression-roll C to rotate without rotating the roller-Q. Theroller Q is connected with the roller J by a belt q, whereby the rotarymovement of the roller Qwill be communicated to the roller J.

The operation of my attachment is as follows: If the embossed paperbeing delivered from the machine from the impression-roll should clingto the said roll until it pass between the impression-roll and theroller Q, as shown in dotted lines on Fig. 3, the roller Q would berotated, and through the belt q would rotate the roller J. This rotationof the roller J will cause its cam K to swing its tripping-arm Lupwardly, and which when turned will raise the latch O and release itfrom its catch P. The retracting-spring N will then rock the shaft Moutwardly, thereby causing the belt-shifterto shift the belt from thefast pulley onto the loose pulley, and thus permit the machine to stop.

By the use of this automatic stop attachment the paper which is beingdelivered from the embossing-machines does not have to be watched by anattendant, for the reason that the machine will stop immediately if thepaper should not be delivered properly there-. from.

It is evident that slight changes might be resorted to in the form andarrangement of the several parts'without departing from the spirit andscope of my invention. Hence I do not wish to limit myself strictly tothe structure herein set forth; but

hat I claim is In a paper-embossing machine, embossing and impressionrolls, means for operating the rolls, an operating-roller mounted instationary bearings in proximity to the impressionroll at a point beyondwhere the embossed paper is normally delivered from the impression-roll,the said roller being adapted to be rotated by the passage of the paperbetween it and the impression-roll, and a stop mechanism under thecontrol of the rotary movement of the said operating-roller, substan-JOHN ALEX. PRINCE.

\Vitnesses:

FREDK. HAYNES, EDWARD VIESER.

